Low Noise Measurement Preamplifier

LNMP, finished

This is a circuit for boosting small AC signals for measurement with an oscilloscope, voltmeter, spectrum analyzer, etc. It was specifically designed for testing linear regulator noise, but it’s a fairly generic circuit, so you can probably find other uses for it.

I no longer offer manufactured LNMP PCBs. However, the EAGLE and Gerber files are linked below, so you can get some professionally made yourself. The LNMP is a low enough density design that you should also be able to hand-etch it yourself, though beware that it is a 2-layer design.

Features and Specifications

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Updated Fri Dec 16 2022 12:23 MST Go back to Electronics Go to my home page